FIELD: personal items; optical system.
SUBSTANCE: invention relates to eyeglasses and can be used for users with unusual dimensions of head. Glasses have arch extending backward from front side and comprising a flexible part, characterised by radius of curvature ρ and including first and second lengthwise ribs. When arc is not in bent state, first rib is located at an angle to second rib ρ < 80 mm.
EFFECT: optimum combination of reliability of seating and wearing comfort for a wide range of dimensions of user's head.
20 cl, 11 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| GLASSES WITH FLEXIBLE ELEMENT | 2013 |
|
RU2578021C1 |
| PROTECTIVE GOGGLES, PREFERABLY, WORKING PROTECTIVE GOGGLES | 1998 |
|
RU2207832C2 |
| LIGHT THERAPY PLATFORM SYSTEM | 2012 |
|
RU2613607C2 |
| FRAME FOR GLASSES WITH SIDES HAVING TWO ORTHOGONAL AXES OF ROTATION AND FORMING CASE AFTER THEIR FOLDING | 2005 |
|
RU2353962C2 |
| SHACKLE FOR SPECTACLES | 0 |
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SU1449027A3 |
| WEARABLE DEVICES | 2021 |
|
RU2809946C1 |
| DECORATION FOR FACE IN FORM OF MASK | 2011 |
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RU2573786C2 |
| WEARABLE PROTECTIVE DEVICE | 2009 |
|
RU2543462C2 |
| ARTICULATION PIVOT FOR SPECTACLE FRAMES | 1999 |
|
RU2193791C2 |
| SWIVEL GLASSES (OPTIONS) | 2017 |
|
RU2655613C1 |
